Innovative Automatic Top Off (ATO) system boasts versatile and extreme ease of use - especially if space is limited. AutoAqua Smart ATO Automatic Top Off System makes it easier than ever to maintain ideal aquarium or sump water level. Plug and Play system boasts ultra compact size, hi-tech optical sensor technology and includes everything you need for simple installation and operation. Great ATO solution for all-in-one aquarium systems where conventional ATO systems may not be practical!

AutoAqua Smart ATO Automatic Top Off System features a 2-in-1, patent pending contactless digital sensor/controller that monitors and automates the refilling of evaporated aquarium water. Optical sensors monitor aquarium water level and automatically activates the included water pump to replenish evaporated water. Simply move the magnetically mounted controller to set desired water level. No moving parts and integrated AFS (Auto Feedback Security) technology that provides real-time fail safe protection against failure ensure simple and reliable use.

AutoAqua Smart ATO Automatic Top Off System includes Optical Water Level Controller, Universal Bracket, Power Adapter, 74 gph DC Refill Pump, and two meters of tubing. AutoAqua Smart ATO Automatic Top Off System Optical Water Level Controller measures just 2" in diameter. Mounts to aquarium glass or acrylic walls up to 1/2 inch in thickness. 2-year manufacturer warranty.

Mount the Smart Controller (SC) on the clear wall of the tank or sump.

Connect the DC Pump Wire into the SC and install the Water Tubing (NOTE: Set the ATO Output Tubing higher than the "Normal Water Level" of tank or sump as well as the "High Level" in the reservoir to prevent siphon).

Connect the Power Adapter into an electrical outlet and then into the SC to initialize.

Position the SC by moving the outside controller under the present water level or 1/5 inch (5mm) higher than the present water level to test the ATO function.

LED Indicator

LED Color

Status

Meaning

Action

Green LED (POWER)

Light ON

Power is ON

NA

Flashing Slowly

Refilling/Pumping

Blue LED (ALARM)

Flashing Slowly with Audible Alert

Misalignment

Adjust the alignment of the SC and system will automatically go back to normal after refilling

Algae

Clean the algae and the system will automatically go back to normal after refilling

Red LED (PUMP)

Flashing Slowly with Audible Alarm

Water Empty

Add water to the reservoir and reset*

Bubble Noise

Reduce bubbles in the tank or sump and then reset*

Flashing Quickly with Audible Alert

Bad Pump Connecton

Reconnect the pump wire by hand and then reset*

Pump Malfunction

Replace the pump and then reset*

*Reset: Unplug and re-plug the power cord.

Auto Feedback Security (AFS) Technology
AFS Technology is the SMART ATO safety function to secure the ATO system dynamically and for real-time protection against any failure situation.

Blue LED (Non-filling Alert): SC will alert when it senses the next non-filling period is two times greater than the last period. For example, if the non-filling period was 13 hours, the SC will alert when the next non-filling period is over 26 hours.

Non-Filling Period

5 h

12 h

13 h

15 h

20 h

NEXT Non-Filling Alert(Minimum 24 hours)

>24 h

>24 h

>26 h

>30 h

>40 h

Note: SC will alert is non-filling period is over 48 hours after installation and first refilling.

Red LED (Over-filling Alert): SC will alert when it senses the next refilling time is three times greater than the last one. For example, if the SC refills for 10 seconds, the SC will alert when the next refilling time is over 30 seconds.

You have pampered your fish and plants, and now it's time for an extended business trip, or an opportunity to pamper yourself with a well-deserved vacation. But what about your aquarium? How can you leave for three days or longer and be sure.

With the wide variety of commercial foods
available, it is sometimes difficult to determine
which type of food to feed your fish. When
choosing a food, the first thing you need to know
is what type of diet is natural to your fish.

Fish need protein, lipids, carbohydrates, vitamins and minerals. Unfortunately few foods contain all or enough of these essential nutrients. Therefore, the best way to ensure all their nutritional prerequisites are met is to give them a varied diet.

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AutoAqua Smart ATO (Mfg# SATO-100P)
5
5
3
3

Great product
I purchased this product about a month ago for use with a 46 gal. bow front reef tank and I love it. It was easy to set up. I used a 5 gallon square water jug with a wide mouth lid for the supply tank. The pump is small enough to slip through the opening. The clamp system allows you to easily position the feed tube on your sump. I accidentally let my water level in the supply tank get low and this morning I had a beeping warning to let me know there was a problem. I added water and reset the system and it immediately added water to the sump to bring the water level to where it should be. It will also let you know if it is running longer than expected. So far this ATO has worked exactly as advertised. It was a bit pricey but so far it was well worth the money.
January 1, 2015

excellent ATO
I had previously sworn by my Tunze ATO, until the controller took a dip in my sump and stopped working. The Tunze worked well, but the pump was fairly loud - loud enough to hear it over the TV next to it. I replaced it with the Autoaqua ATO - so far, couldn't be happier. Its simple to set up, dead quiet, and tops off my 125g in just a few seconds. Highly recommend.
June 6, 2014

Wow. Works as advertised!
Keeps my salinity in check. More importantly, when I am away from home for more than 1 week, my water level would get so low that I'd risk my overflow running dry. This ato device assures that my overflow will never run dry.
My acrylic aquarium is a little thicker than the 1/2 inch that the product says it can do so I taped some Velcro below it to keep it from sliding down.
NOTE: the device must be attached to a CLEAR glass/acrylic.
May 19, 2014

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Answers

Thank you for your question. We reached out to the manufacturer and they said the following:

Some people do this but they do it when dealing with large system. In small system such as a 40 gal tank, using Kalkwasser for top off would be detrimental as it would bring the pH of the water in the tank down very fast and would stress the inhabitants. I would recommend against it.

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My tank has a rim. I like to keep the water level high enough that it is hidden by the rim. I am thinking this unit wouldn't work for that. I would have to lower my water level to an inch or so below the rim. Am I correct?

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Answers

Thank you for your question. You would not have to remove any water. The Auto Top off Controller (item# 22977) comes with two sensors that are placed in the aquarium. If the water drops lower than the sensors, then it would auto fill it up.

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